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OSG Square End Mill: Carbide, TiAlN Coated, 2 Flute, 3/4" Mill Dia, 1-1/2" LOC - General Purpose Carbide Square End Mills
OSGGeneral Purpose Carbide Square End Mills

OSG Square End Mill: Carbide, TiAlN Coated, 2 Flute, 3/4" Mill Dia, 1-1/2" LOC

The OSG Square End Mill is a general purpose carbide square end mill, TiAlN coated, with 2 flutes, a 3/4" mill diameter, 1-1/2" LOC, and 4" OAL (MPN HP421-7500). 3G Electric interprets your demand for this cutting…

SKU 3G-OTH-272393

Also listed as: HP4217500 · HP421 7500

Brand
OSG
Item
Square End Mill: Carbide, TiAlN Coated, 2 Flute, 3/4" Mill Dia, 1-1/2" LOC
Category
General Purpose Carbide Square End Mills
Available to Order
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
HP421-7500
Type
TiAlN Coated
Mill Dia
3/4"
OAL
4"
Flute
2
LOC
1-1/2"

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Square End Mill is a general purpose carbide square end mill, TiAlN coated, with 2 flutes, a 3/4" mill diameter, 1-1/2" LOC, and 4" OAL (MPN HP421-7500). 3G Electric interprets your demand for this cutting tool and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as a trust anchor, not a limit.

Frequently Asked Questions

What is the OSG HP421-7500 square end mill used for?

The OSG HP421-7500 is a general-purpose carbide square end mill used for milling slots, profiles, and contours in metals and composites. Its TiAlN coating enhances wear resistance and heat tolerance, making it suitable for ferrous and non-ferrous materials in industrial machining applications.

What are the specifications of the OSG HP421-7500 end mill?

The OSG HP421-7500 is a carbide square end mill with a TiAlN coating, 2 flutes, 3/4" mill diameter, 1-1/2" length of cut, and 4" overall length. The manufacturer part number is HP421-7500. It is designed for general-purpose milling in CNC and manual machines.

Where to buy the OSG HP421-7500 end mill worldwide?

You can source the OSG HP421-7500 end mill through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this OSG tool.

How to select the right OSG square end mill for your application?

Select the OSG HP421-7500 for general-purpose milling of steel, stainless steel, and cast iron. Match the 3/4" diameter and 1-1/2" length of cut to your workpiece geometry. The TiAlN coating suits higher cutting speeds. For aluminum or non-ferrous materials, consider uncoated or polished flute variants.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG general purpose carbide square end mills. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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